Roof drain



June 10, 19.30. R.,c. SHAND ROOF DRAIN Filed Jan. 25, 1929 a/ v 'lE l FIE E in pairs or replacements.

Patented June 10, 1930 P TENT OFFICE UNITED {STATES REGIN LD c. sn nn or PIEDMONT, cALIrcRn-IA, Assienonro sHAND & Jnns COM- PANYQOF BERKELEY, CALIFORNIA, A COPARTNERSHIP CONSISTING or REGINALD a noor-mtAnv- 1 Application filed Januar sa 1929. Serial N'o. 334,558.

This invention relates generally to devices for installation in' cnnectionwith roofs of buildings, and which serve to convey water to drainage pipes. a; I

5 It is an ob ect of this invention to devise a roof drain of relatively simple construction, whichcan be readily manufacturedand installed, and which will give' relativelydong service without the necessity 'ofinaking 're- It is aftu'rther object of this invention to devise a roof drain of novel character havboth strainer and sediment receiving members, and in which the sedimentrec-eiving member is so constructed. that it will not become stuck or fastftoithe body of the drain :thru accumulations of tar or other cementie tious material. I p I Itisa further objectof this invention to Construct a roof drain in which the sediment and strainer members are formed asseparate parts, and in which the strainer member servesto retain the sediment receiving memher in normal position.

725 i It is a further object of this invention to devise'novel means for securinga clamping ring to the body of a roof drain and for 'removably'retaining a strainer member to the body.

I have'set Iorthfthe preferred embodiment of my invention. It is to be understood that the appended claims are to be accorded a i i'rangeof equivalents consistent with the state 7 23,.wl1ich are apertured to recelve the upper or the prior art.

Referring to the drawing:

Figure 1 is a side elevational View partly in I section illustrating a roof drain constructed 40 m'accordance with my invent on.

Fig. 21s a plan viewof the'roof drain as shown'in Fig. 1.

Figs. 3, 4,,- 5 and 6 are detail cross sectional V directly below. the strainer member'22. 5 diameter of sediment cup 26 is substantially views of the strainer member, the cup-shaped sediment member,the clamping ring, and

rther objects of the invention willgappear from the following description in which i The specific embodiment of invention illustrated in the drawing includes a body memberv 10, the lower portion of which is formed to make connection with the upper end of a drain pipe or conduit 11. The opening this body member, designated at 12, is

enlarged at the upper end of. the body;-,sufch enlargement being generally I provided by i forming. the body member flared or bellshaped as shoyvn. Wheninstalling my 'drain infconnection with a r0of,theupp er face 13 of the body is arranged at substantially the same level as therdrainagelevel of the roof. The waterproofingmember l4 ofthe roof is generally extended. in 'overlapping relationship with the upper face13, and is engaged by an annular clamping ring 16. In order that ring 16 may be clamped tightly upon the member 14, to provide a water-tight connection, I have shown a plurality of threaded rods or studs 17' which are threaded into the body member 10, and extend upwardly from the same. These rods extend thru holes 18 in clamping ringl6, and have their upper threaded ends engagedby clamping nuts .19. In order to minimize entrance or tar or other roofing coating material into the body, clamping ring 16 is preferably pro- Vided'with an annularrib or ridge 21.1

. Extending over the 0pening'12 in the body I and "ositioned substantially entirely above v the rainage level of the roof, there is a v dome-shaped'strainer member 22. The lower rim or edge of strainer member 22 is provided with a plurality of laterally extending'lugs threaded ends of rods17g Readily removable wing nuts 24' engaging rods '17 serve to clamp lugs andthus detachably reta n the strainer in. normal position. p

In addition tothe strainer22 I provide a sediment cup 26, which is preferably normally disposed within the body openingTI1i2 e the same as the'internal diameterof clamping ring 16, and its upper edge is normally arranged at substantially the samelevel as sition, I provide a plurality of lugs 27 formed upon the upper edge of cup 26 and extending laterally from the same. These lugs can be provided With slots 28 for receiving nuts 19, and normally rest upon the upper face of clamping ring 16 asshown. The openings or perforations 29in sediment cup 26 are preferably substantially smaller than the corresponding openings 31 in strainer v22, so

that solid matter which may pass through openings 31 will be caught and held by the sediment cup. Secured centrally of the cup 26, I provide an upstanding rod 32 having a hand hold or handle 33 formed on its upper end.

VVh-en the drain is in use it is evidenced that a certain amount of material will accumulate within the cup 26, and that this material must be removed at certain intervals. To remove accumulated sediment it is only necessary to remove Wing nuts 24 to remove the strainer 22, after which the sediment cup 26 can be readily lifted out from the body.

Generally cementitious material, such as tar Qcxtend substantially entirely across the upper portion of theopening in the body member, and by having the upper edge ofthe sediment cup terminate near the drainage level of the roof. It is also to be noted that the rods or studs 17 serve both as means for forcing the .clamping ring 16 towards the body and for the retaining of the strainer member 22 in position, and also indirectly for positioning and retaining the sediment cup Since the parts of my drain are of comparatively simple design, they can be made relatively strongand at a relatively low cost.

I claim:

1. roof drain comprising a body member having an opening extending downwardly thru the same and adapted to be installed in connection witha roof, the upper face of said body being substantially at the level of the drainage level ofthe roof, a perforated sediment cup disposed within said body, lugs projecting from the upper edge of said cup, said lugs being supported by said body and serving to retain the cup with its upper edge near saidlevel, and a dome like strainer removably positioned over sald openlng, said stra ner extending above said level and being removably disposed ,on said body.

A 'roof drain comprising a body member having an upwardly diverging opening thru the same, said body being adapted to heass'embled witha roof with the upper edge of the same near the drainage level of the roof, a perforated sediment receiving cup removably disposed Within said body, sald cup being of such diameter as to extend substantiallyentirely across the large upper pori n of a Opening, means six-te din erally from thenpper edge of said cup serving to support the same on the body, the

upper edge of said cup in normal position being at substantially said roof;level,.a domelike strainer, and lugson the loweredge of the strainer adapted to be supported by said body whereby said strainer is removably disposed above said sediment cup.

3. A roof drain comprising a body member having an opening therethrough and adapted to be installed with its upper face near the drainage level of ;the roof, a perforated sediment receiving cup normally'disposed within said opening substantially entirely below said drainage level, a clamping ring disposed upon the upper face of 'said body, threaded rods secured tosaid body and projecting thru said ring, nuts ,on said rods for engaging said ring and for forcing the same toward said body, lugs projecting laterally "from the upper rimof said cup and adapted to rest upon said ring between said rods, a domedike strainer, lugs projecting amn rmm the lower edge of said strainer L e en a i upre e ds o s id edabove saidnuts, and additional nutsfengaging said rods for removably retaining'fsaid lugs and said strainer in normal position.

' A. A roof drain comprising a body member having an opening extending downwardly through .the same and adapted to be installed in connection with a roof, the upper face of said body being normally substantially at the level of the drainage levelofthe roof, a dam ng member d pose O11 h u'p'pe face of the body vandadapted to clamp a roof membrane between the same andsaid body,

a perforated sediment cup disposed Within said body, means adjacent the upper edge of said cup being supported on saidmember and in turn serving to support the cup with its upper edge near said lever, and a domelike strainer removably positioned pversa id opening, said strainer extending above said level and being re movably su pported by said body. l i

5. A roof draincomprising a body member having an opening extendingdownwardly thru the same and adapted to be installejd in connection with a roof, the upper face of said body being substantially at the level of thedrainage level of the roof, a sediment receivingcup removably disposed-withinsaid body, the upper edge of said cup being on substantially said level, a dome-like strainer removable positioned on said body and extending over said opening and said sediment cup above said drainage level, said strainer being a separate member with respect to the sediment cup. and means for sealing a roof membrane with respect to said body.

6. A roof drain comprising a body member having an opening extending downwardly through the same and adapted to be installed in connection with a roof, the upper face of said body being substantially at the level of the drainage level of the roof, means for sealing the roofing membrane with respect'to said body, a sediment receiving cup removably connected to said sealing means, the upper'edge of said cup being on substantially said level, and a dome-like strainer removably positioned on said body and extending over said opening and said sediment cun above said drainage level, said strainer being a separate member with respect'to the sediment cup and said sealing member, whereby said strainer may be removed without disturbing the sealing member for the roofing membrane.

7. A roof drain comprising a body member having an opening extending downwardly thru the same and adapted to be installed.

in connection with a roof, the upper face of said body being substantially at the level of the drainage level of the roof, means for. sealing the roofing membrane with respect to said body, a sediment receiving cup removably disposed within the opening thru said body, means interposed between the body and the cup for removably supporting said cup at circumferentially spaced points with the side walls of the cup spaced from the adjacent walls of the body, and a dome-like strainer removably positioned on said body and extending over said opening and said sediment cup above said drainage level, said strainer being a separate member with respect to the sediment cup and said sealing member, whereby said strainer may be removed without disturbing the sealing membar for the roof membrane.

In testimony whereof, I have hereunto set my hand.

REGINALD O. SHAND. 

